| Addenbrooke's A&E | A&E | Cambridge University Hospitals NHS Foundation Trust | Cambridge | Pending |
| Aintree University Hospital A&E | A&E | Liverpool University Hospitals NHS Foundation Trust | Liverpool | |
| Airedale General Hospital A&E | A&E | Airedale NHS Foundation Trust | Keighley | Pending |
| Alder Hey Nhs Foundation Trust Children's A&E | Children's A&E | Alder Hey Children's NHS Foundation Trust | Liverpool | Pending |
| Alexandra Hospital A&E | A&E | Worcestershire Acute Hospitals NHS Trust | Redditch | Live |
| Altnagelvin Area Hospital A&E | A&E | Western Health and Social Care Trust | Londonderry | Live |
| Antrim Area Hospital A&E | A&E | Oxleas NHS Foundation Trust | Dartford | Live |
| Arrowe Park Hospital A&E | A&E | Wirral University Teaching Hospital NHS Foundation Trust | Wirral | Pending |
| Barnet Hospital A&E | A&E | Royal Free London NHS Foundation Trust | Barnet | Pending |
| Barnsley Hospital A&E | A&E | Barnsley Hospital NHS Foundation Trust | Yorkshire | |
| Basildon Hospital A&E | A&E | North East London NHS Foundation Trust | Basildon | Pending |
| Basingstoke And North Hampshire Hospital A&E | A&E | Hampshire Hospitals NHS Foundation Trust | Basingstoke | Pending |
| Bassetlaw Hospital A&E | A&E | Doncaster and Bassetlaw Teaching Hospitals NHS Foundation Trust | Worksop | Pending |
| Bedford Hospital South Wing A&E | A&E | Bedford Hospital NHS Trust | Bedford | Pending |
| Blackpool Victoria Hospital A&E | A&E | Blackpool Teaching Hospitals NHS Foundation Trust | Blackpool | Pending |
| Boston Urgent Treatment Centre | Urgent Treatment Centre | Lincolnshire | Boston | Live |
| Bradford Royal Infirmary A&E | A&E | Bradford Teaching Hospitals NHS Foundation Trust | Bradford | Pending |
| Bristol Royal Hospital For Children's A&E | Children's A&E | University Hospitals Bristol and Weston NHS Foundation Trust | Bristol | Pending |
| Bristol Royal Infirmary A&E | A&E | University Hospitals Bristol and Weston NHS Foundation Trust | Bristol | Pending |
| Bromsgrove MIU | MIU | - | Bromsgrove | Live |
| Bronglais General Hospital A&E | A&E | Hywel Dda University Health Board | Aberystwyth | Live |
| Buckland Urgent Treatment Centre | Urgent Treatment Centre | Kent | Dover | Pending |
| Calderdale Royal Hospital A&E | A&E | Calderdale and Huddersfield NHS Foundation Trust | Halifax | Pending |
| Causeway Area Hospital A&E | A&E | Essex Partnership University NHS Foundation Trust | Wickford | Live |
| Charing Cross Hospital A&E | A&E | Imperial College Healthcare NHS Trust | London | Pending |
| Chelsea And Westminster Hospital A&E | A&E | Chelsea and Westminster Hospital NHS Foundation Trust | London | Pending |
| Chesterfield Royal Hospital A&E | A&E | Chesterfield Royal Hospital NHS Foundation Trust | Chesterfield | Pending |
| Chorley And South Ribble Hospital A&E | A&E | Lancashire Teaching Hospitals NHS Foundation Trust | Chorley | Pending |
| Colchester Hospital A&E | A&E | East Suffolk and North Essex NHS Foundation Trust | Colchester | Pending |
| Conquest Hospital A&E | A&E | East Sussex Healthcare NHS Trust | St. Leonards-on-Sea | Pending |
| Countess Of Chester Hospital A&E | A&E | Countess Of Chester Hospital NHS Foundation Trust | Chester | Pending |
| Coventry Urgent Treatment Centre | Urgent Treatment Centre | Virgin Care Ltd | Coventry | Pending |
| Craigavon Area Hospital A&E | A&E | Southern Health & Social Care Trust | Portadown | Live |
| Croydon University Hospital A&E | A&E | Croydon Health Services NHS Trust | Thornton Heath | Pending |
| Cumberland Infirmary A&E | A&E | North Cumbria Integrated Care NHS Foundation Trust | Carlisle | Live |
| Daisy Hill Hospital A&E | A&E | Bradford District Care NHS Foundation Trust | Bradford | Live |
| Darent Valley Hospital A&E | A&E | Dartford and Gravesham NHS Trust | Dartford | Pending |
| Darlington Memorial Hospital A&E | A&E | County Durham and Darlington NHS Foundation Trust | County Durham | Pending |
| Deal Urgent Treatment Centre | Urgent Treatment Centre | Kent | Deal | Pending |
| Derriford Hospital A&E | A&E | University Hospitals Plymouth NHS Trust | Plymouth | Live |
| Dewsbury And District Hospital A&E | A&E | Mid Yorkshire Hospitals NHS Trust | Dewsbury | Pending |
| Doncaster Royal Infirmary A&E | A&E | Doncaster and Bassetlaw Teaching Hospitals NHS Foundation Trust | Yorkshire | Pending |
| Dorset County Hospital A&E | A&E | Dorset County Hospital NHS Foundation Trust | Dorchester | Live |
| Ealing Hospital A&E | A&E | London North West University Healthcare NHS Trust | Southall | Pending |
| East Surrey Hospital A&E | A&E | Surrey and Sussex Healthcare NHS Trust | Redhill | |
| Eastbourne District General Hospital A&E | A&E | East Sussex Healthcare NHS Trust | Eastbourne | |
| Epsom Hospital A&E | A&E | Epsom and St Helier University Hospitals NHS Trust | Epsom | Pending |
| Estuary View Urgent Treatment Centre | Urgent Treatment Centre | Kent | Whitstable | Pending |
| Evesham MIU | MIU | - | Evesham | Live |
| Fairfield Hospital A&E | A&E | Northern Care Alliance NHS Foundation Trust | Bury | Pending |
| Faversham Urgent Treatment Centre | Urgent Treatment Centre | Kent | Faversham | Pending |
| Folkestone Urgent Treatment Centre | Urgent Treatment Centre | Kent | Folkestone | Pending |
| Frimley Park Hospital A&E | A&E | Frimley Health NHS Foundation Trust | Camberley | Pending |
| Furness General Hospital A&E | A&E | University Hospitals Of Morecambe Bay NHS Foundation Trust | Barrow-In-Furness | Live |
| Gainsborough Urgent Treatment Centre | Urgent Treatment Centre | Lincolnshire | Gainsborough | Live |
| Glan Clwyd Hospital A&E | A&E | Betsi Cadwaladr University Health Board | Bodelwyddan | Live |
| Glangwili General Hospital A&E | A&E | Hywel Dda University Health Board | Carmarthen | Live |
| Gloucestershire Royal Hospital A&E | A&E | Gloucestershire Hospitals NHS Foundation Trust | Gloucester | Pending |
| Good Hope Hospital A&E | A&E | University Hospitals Birmingham NHS Foundation Trust | Sutton Coldfield | Live |
| Grantham & District Hospital Urgent Treatment Centre | Urgent Treatment Centre | Lincolnshire | Grantham | Live |
| Gravesend Urgent Treatment Centre | Urgent Treatment Centre | Kent | Gravesend | Pending |
| Harrogate District Hospital A&E | A&E | Harrogate and District NHS Foundation Trust | Harrogate | Pending |
| Haywood Wic A&E | A&E | Staffordshire | Stoke on Trent | Live |
| Heartlands Hospital A&E | A&E | University Hospitals Birmingham NHS Foundation Trust | Birmingham | Live |
| Herne Bay Urgent Treatment Centre | Urgent Treatment Centre | Kent | Herne Bay | Pending |
| Hillingdon Hospital A&E | A&E | The Hillingdon Hospitals NHS Foundation Trust | Uxbridge | Pending |
| Homerton University Hospital A&E | A&E | Homerton University Hospital NHS Foundation Trust | London | Pending |
| Horton General Hospital A&E | A&E | Oxford University Hospitals NHS Foundation Trust | Banbury | Pending |
| Huddersfield Royal Infirmary A&E | A&E | Calderdale and Huddersfield NHS Foundation Trust | Huddersfield | |
| Hull Royal Infirmary A&E | A&E | Hull University Teaching Hospitals NHS Trust | Hull | Pending |
| Ipswich Hospital A&E | A&E | East Suffolk and North Essex NHS Foundation Trust | Ipswich | Pending |
| James Paget University Hospital A&E | A&E | James Paget University Hospitals NHS Foundation Trust | Great Yarmouth | Pending |
| John Radcliffe Hospital A&E | A&E | Oxford University Hospitals NHS Foundation Trust | Oxford | Pending |
| Kent & Canterbury Urgent Treatment Centre | Urgent Treatment Centre | Kent | Canterbury | Pending |
| Kettering General Hospital A&E | A&E | Kettering General Hospital NHS Foundation Trust | Kettering | |
| Kidderminster MIU | MIU | - | Kidderminster | Live |
| King George Hospital A&E | A&E | Barking, Havering and Redbridge University Hospitals NHS Trust | Ilford | Pending |
| King's College Hospital A&E | A&E | King's College Hospital NHS Foundation Trust | London | Pending |
| King's Mill Hospital A&E | A&E | Sherwood Forest Hospitals NHS Foundation Trust | Sutton-In-Ashfield | Pending |
| Kingston Hospital A&E | A&E | Kingston Hospital NHS Foundation Trust | Kingston Upon Thames | |
| Leeds General Infirmary A&E | A&E | Leeds Teaching Hospitals NHS Trust | Leeds | Pending |
| Leek MIU | MIU | Staffordshire | Leek | Live |
| Leicester Royal Infirmary A&E | A&E | University Hospitals Of Leicester NHS Trust | Leicester | Pending |
| Leighton Hospital A&E | A&E | Mid Cheshire Hospitals NHS Foundation Trust | Crewe | Live |
| Lincoln County Hospital A&E | A&E | United Lincolnshire Hospitals NHS Trust | Lincoln | Live |
| Lister Hospital A&E | A&E | East and North Hertfordshire NHS Trust | Stevenage | |
| Louth Urgent Treatment Centre | Urgent Treatment Centre | Lincolnshire | Louth | Live |
| Luton And Dunstable Hospital A&E | A&E | BEDFORDSHIRE HOSPITALS NHS FOUNDATION TRUST | Luton | Pending |
| Macclesfield District General Hospital A&E | A&E | East Cheshire NHS Trust | Macclesfield | Live |
| Maidstone Hospital A&E | A&E | Maidstone and Tunbridge Wells NHS Trust | Maidstone | Pending |
| Malvern MIU | MIU | Worcestershire | Malvern | Live |
| Manchester Royal Infirmary A&E | A&E | Manchester University NHS Foundation Trust | Manchester | Pending |
| Manor Hospital A&E | A&E | Walsall Healthcare NHS Trust | Walsall | Pending |
| Mater Hospital A&E | A&E | Belfast Health and Social Care Trust | Belfast | Live |
| Medway Maritime Hospital A&E | A&E | Medway NHS Foundation Trust | Gillingham | Pending |
| Mid Essex Hospital A&E | A&E | Mid and South Essex NHS Foundation Trust | Chelmsford | |
| Midland Metropolitan University Hospital A&E | A&E | Sandwell and West Birmingham Hospitals NHS Trust | Smethwick | Live |
| Milton Keynes Children's A&E | Children's A&E | - | - | Live |
| Milton Keynes Hospital A&E | A&E | Milton Keynes University Hospital NHS Foundation Trust | Milton Keynes | Live |
| Musgrove Park Hospital A&E | A&E | Somerset NHS Foundation Trust | Taunton | |
| New Cross Hospital A&E | A&E | The Royal Wolverhampton NHS Trust | Wolverhampton | Pending |
| Newham Hospital A&E | A&E | Barts Health NHS Trust | London | Pending |
| Newton Abbot Community Hospital A&E | A&E | Torbay and South Devon NHS Foundation Trust | Newton Abbot | Live |
| Norfolk And Norwich University Hospital A&E | A&E | Norfolk and Norwich University Hospitals NHS Foundation Trust | Norwich | |
| North Devon District Hospital A&E | A&E | Royal Devon University Healthcare NHS Foundation Trust | Barnstaple | Pending |
| North Middlesex Hospital A&E | A&E | Royal Free London NHS Foundation Trust | London | Pending |
| Northampton General Hospital (Acute) A&E | A&E | Northampton General Hospital NHS Trust | Northampton | Pending |
| Northern General Hospital A&E | A&E | Sheffield Teaching Hospitals NHS Foundation Trust | Sheffield | Pending |
| Northumbria Specialist Emergency Care Hospital A&E | A&E | Northumbria Healthcare NHS Foundation Trust | Cramlington | Pending |
| Northwick Park Hospital A&E | A&E | London North West University Healthcare NHS Trust | Harrow | Pending |
| Nottingham University Hospitals Nhs Trust - Queen's Medical Centre Campus A&E | A&E | Nottingham University Hospitals NHS Trust | Nottingham | Pending |
| Omagh Hospital And Primary Care Complex A&E | A&E | Western Health and Social Care Trust | Omagh | Live |
| Peterborough City Hospital A&E | A&E | North West Anglia NHS Foundation Trust | Peterborough | Pending |
| Pinderfields Hospital A&E | A&E | Mid Yorkshire Hospitals NHS Trust | Wakefield | Pending |
| Poole Hospital A&E | A&E | University Hospitals Dorset NHS Foundation Trust | Poole | Pending |
| Prince Charles Hospital A&E | A&E | Royal Berkshire NHS Foundation Trust | Windsor | Live |
| Princess Alexandra Hospital A&E | A&E | The Princess Alexandra Hospital NHS Trust | Harlow | Pending |
| Princess Of Wales Hospital A&E | A&E | Northern Lincolnshire and Goole NHS Foundation Trust | Grimsby | Live |
| Princess Royal Hospital A&E | A&E | University Hospitals Sussex NHS Foundation Trust | Haywards Heath | Pending |
| Princess Royal Hospital A&E | A&E | Shrewsbury and Telford Hospital NHS Trust | Telford | Pending |
| Princess Royal University Hospital A&E | A&E | King's College Hospital NHS Foundation Trust | Orpington | Pending |
| Queen Alexandra Hospital A&E | A&E | Portsmouth Hospitals NHS Trust | Portsmouth | Pending |
| Queen Elizabeth Hospital A&E | A&E | Lewisham and Greenwich NHS Trust | London | Live |
| Queen Elizabeth Hospital A&E | A&E | Gateshead Health NHS Foundation Trust | Gateshead | Pending |
| Queen Elizabeth Hospital Birmingham A&E | A&E | University Hospitals Birmingham NHS Foundation Trust | Birmingham | Live |
| Queen Elizabeth The Queen Mother Hospital A&E | A&E | East Kent Hospitals University NHS Foundation Trust | Margate | Pending |
| Queen's Hospital A&E | A&E | Barking, Havering and Redbridge University Hospitals NHS Trust | Romford | Pending |
| Queens Hospital Burton A&E | A&E | - | Burton-on-Trent | Live |
| Queen's Hospital Burton A&E | A&E | University Hospital of Derby and Burton NHS Foundation Trust | Burton-On-Trent | |
| Rotherham Hospital A&E | A&E | The Rotherham NHS Foundation Trust | Rotherham | Pending |
| Royal ’S Hospital Children's A&E | Children's A&E | University Hospitals Sussex NHS Foundation Trust | Brighton | Live |
| Royal Albert Edward Infirmary A&E | A&E | Wrightington, Wigan and Leigh NHS Foundation Trust | Wigan | Pending |
| Royal Berkshire Hospital A&E | A&E | Royal Berkshire NHS Foundation Trust | Reading | Pending |
| Royal Blackburn Teaching Hospital A&E | A&E | East Lancashire Hospitals NHS Trust | Blackburn | Pending |
| Royal Bolton Hospital A&E | A&E | Bolton NHS Foundation Trust | Bolton | Pending |
| Royal Bournemouth Hospital A&E | A&E | University Hospitals Dorset NHS Foundation Trust | Bournemouth | Pending |
| Royal Cornwall Hospital (Treliske) A&E | A&E | Royal Cornwall Hospitals NHS Trust | Truro | Pending |
| Royal Derby Hospital A&E | A&E | University Hospital of Derby and Burton NHS Foundation Trust | Derby | Pending |
| Royal Devon And Exeter Hospital (Wonford) A&E | A&E | Royal Devon University Healthcare NHS Foundation Trust | Exeter | Pending |
| Royal Free Hospital A&E | A&E | Royal Free London NHS Foundation Trust | London | Pending |
| Royal Glamorgan Hospital A&E | A&E | Cwm Taf Morgannwg University Health Board | Llantrisant | Live |
| Royal Gwent Hospital MIU | MIU | Aneurin Bevan University Health Board | Newport | Live |
| Royal Hampshire County Hospital A&E | A&E | Hampshire Hospitals NHS Foundation Trust | Winchester | Pending |
| Royal Lancaster Infirmary A&E | A&E | University Hospitals Of Morecambe Bay NHS Foundation Trust | Lancaster | Live |
| Royal Liverpool University Hospital A&E | A&E | Liverpool University Hospitals NHS Foundation Trust | Liverpool | Pending |
| Royal London Hospital A&E | A&E | Tower Hamlets Gp Care Group CIC | London | Pending |
| Royal Oldham Hospital A&E | A&E | Northern Care Alliance NHS Foundation Trust | Oldham | Pending |
| Royal Preston Hospital A&E | A&E | Lancashire Teaching Hospitals NHS Foundation Trust | Preston | Pending |
| Royal Shrewsbury Hospital A&E | A&E | Shrewsbury and Telford Hospital NHS Trust | Shrewsbury | Pending |
| Royal Stoke University Hospital A&E | A&E | University Hospitals of North Midlands | Stoke-on-Trent | Live |
| Royal Surrey County Hospital A&E | A&E | Royal Surrey NHS Foundation Trust | Guildford | Pending |
| Royal Sussex County Hospital A&E | A&E | University Hospitals Sussex NHS Foundation Trust | Brighton | |
| Royal United Hospitals, Bath A&E | A&E | Royal United Hospitals Bath NHS Foundation Trust | Bath | |
| Rugby Urgent Treatment Centre | Urgent Treatment Centre | University Hospitals Coventry and Warwickshire NHS Trust | Rugby | Live |
| Runcorn Urgent Treatment Centre | Urgent Treatment Centre | Mersey Care NHS Foundation Trust | Runcorn | Live |
| Russells Hall Hospital A&E | A&E | The Dudley Group NHS Foundation Trust | Dudley | Pending |
| Salford Royal A&E | A&E | Northern Care Alliance NHS Foundation Trust | Salford | Pending |
| Salisbury District Hospital A&E | A&E | Salisbury NHS Foundation Trust | Salisbury | Live |
| Samuel Johnson MIU | MIU | - | Lichfield | Live |
| Scarborough Hospital A&E | A&E | York and Scarborough Teaching Hospitals NHS Foundation Trust | Scarborough | Pending |
| Scunthorpe General Hospital A&E | A&E | Northern Lincolnshire and Goole NHS Foundation Trust | Scunthorpe | Pending |
| Sheffield Hospital Children's A&E | Children's A&E | Sheffield Children's NHS Foundation Trust | Sheffield | Pending |
| Sheppey MIU | MIU | Kent | Sheerness | Pending |
| Sir Robert Peel MIU | MIU | - | Tamworth | Live |
| Sittingbourne MIU | MIU | Kent | Sittingbourne | Pending |
| Skegness Urgent Treatment Centre | Urgent Treatment Centre | Lincolnshire | Skegness | Live |
| Solihull Hospital Urgent Treatment Centre | Urgent Treatment Centre | University Hospitals Birmingham NHS Foundation Trust | Solihull | Pending |
| South Tyneside District Hospital A&E | A&E | South Tyneside And Sunderland NHS Foundation Trust | South Shields | Pending |
| South West Acute Hospital A&E | A&E | Western Health & Social Care Trust | Enniskillen | Live |
| Southampton General Hospital A&E | A&E | University Hospital Southampton NHS Foundation Trust | Southampton | Pending |
| Southend Hospital A&E | A&E | Mid and South Essex NHS Foundation Trust | Westcliff-on-Sea | Pending |
| Southmead Hospital A&E | A&E | North Bristol NHS Trust | Bristol | Pending |
| Spalding Urgent Treatment Centre | Urgent Treatment Centre | Lincolnshire | Spalding | Live |
| St George's Hospital A&E | A&E | St George's University Hospitals NHS Foundation Trust | London | Pending |
| St Helier Hospital A&E | A&E | Epsom and St Helier University Hospitals NHS Trust | Carshalton | Pending |
| St James's Hospital A&E | A&E | Leeds Teaching Hospitals NHS Trust | Leeds | Pending |
| St Mary's Hospital (Hq) A&E | A&E | Imperial College Healthcare NHS Trust | London | Pending |
| St Mary's Hospital A&E | A&E | Isle of Wight NHS Trust | Newport | Pending |
| St Peter's Hospital A&E | A&E | Ashford and St Peter's Hospitals NHS Foundation Trust | Chertsey | Pending |
| St Richard's Hospital A&E | A&E | University Hospitals Sussex NHS Foundation Trust | Chichester | Pending |
| St Thomas' A&E | A&E | Guy's and St Thomas' NHS Foundation Trust | London | Pending |
| Stafford Hospital A&E | A&E | University Hospitals of North Midlands | Stafford | Pending |
| Stepping Hill Hospital A&E | A&E | Stockport NHS Foundation Trust | Stockport | |
| Stoke Mandeville Hospital A&E | A&E | Buckinghamshire Healthcare NHS Trust | Aylesbury | Live |
| Sunderland Royal Hospital A&E | A&E | South Tyneside And Sunderland NHS Foundation Trust | Sunderland | Pending |
| Tameside & Glossop Integrated Care Nhs Foundation Trust A&E | A&E | TAMESIDE AND GLOSSOP INTEGRATED CARE NHS FOUNDATION TRUST | Ashton Under Lyne | Pending |
| Tenbury MIU | MIU | Worcestershire | Tenbury Wells | Live |
| The County Hospital A&E | A&E | Wye Valley NHS Trust | Hereford | Live |
| The Grange University Hospital A&E | A&E | Aneurin Bevan University Health Board | Cwmbran | Live |
| The Great Western Hospital A&E | A&E | Great Western Hospitals NHS Foundation Trust | Swindon | Pending |
| The James Cook University Hospital A&E | A&E | South Tees Hospitals NHS Foundation Trust | Middlesbrough | Pending |
| The Queen Elizabeth Hospital A&E | A&E | The Queen Elizabeth Hospital, King's Lynn. NHS Foundation Trust | King's Lynn | Pending |
| The Royal Victoria Infirmary A&E | A&E | The Newcastle Upon Tyne Hospitals NHS Foundation Trust | Newcastle Upon Tyne | Live |
| The Whittington Hospital A&E | A&E | Royal Free London NHS Foundation Trust | London | Pending |
| The York Hospital A&E | A&E | York and Scarborough Teaching Hospitals NHS Foundation Trust | York | Pending |
| Torbay Hospital A&E | A&E | Torbay and South Devon NHS Foundation Trust | Torquay | Live |
| Tunbridge Wells Hospital At Pembury A&E | A&E | Maidstone and Tunbridge Wells NHS Trust | Tunbridge Wells | Pending |
| Ulster Hospital A&E | A&E | South Eastern Health and Social Care Trust | Dundonald | Live |
| University College Hospital A&E | A&E | University College London Hospitals NHS Foundation Trust | London | Pending |
| University Hospital Coventry A&E | A&E | University Hospitals Coventry and Warwickshire NHS Trust | Coventry | Live |
| University Hospital Coventry Children's A&E | Children's A&E | University Hospitals Coventry and Warwickshire NHS Trust | Coventry | Live |
| University Hospital Coventry Emergency Gynaecology | Emergency Gynaecology | University Hospitals Coventry and Warwickshire NHS Trust | Coventry | Live |
| University Hospital Coventry MIU | MIU | Virgin Care Ltd | Coventry | Live |
| University Hospital Lewisham A&E | A&E | Lewisham and Greenwich NHS Trust | London | Pending |
| University Hospital Of North Durham A&E | A&E | South Tyneside And Sunderland NHS Foundation Trust | Durham | Pending |
| University Hospital Of North Tees A&E | A&E | North Tees and Hartlepool NHS Foundation Trust | Stockton-on-Tees | Pending |
| Warrington Hospital A&E | A&E | Warrington and Halton Hospitals NHS Foundation Trust | Warrington | Live |
| Warwick Hospital A&E | A&E | South Warwickshire University NHS Foundation Trust | Warwick | Pending |
| Watford General Hospital A&E | A&E | Royal Free London NHS Foundation Trust | Watford | Pending |
| West Cumberland Hospital A&E | A&E | North Cumbria Integrated Care NHS Foundation Trust | Whitehaven | Live |
| West Middlesex University Hospital A&E | A&E | Chelsea and Westminster Hospital NHS Foundation Trust | Isleworth | Pending |
| West Suffolk Hospital A&E | A&E | West Suffolk NHS Foundation Trust | Bury St. Edmunds | Pending |
| Weston General Hospital A&E | A&E | University Hospitals Bristol and Weston NHS Foundation Trust | Weston-Super-Mare | Pending |
| Wexham Park Hospital A&E | A&E | Frimley Health NHS Foundation Trust | Slough | Pending |
| Whipps Cross Hospital A&E | A&E | Barts Health NHS Trust | London | Pending |
| Whiston Hospital A&E | A&E | Mersey and West Lancashire Teaching Hospitals NHS Trust | Prescot | |
| William Harvey Hospital (Ashford) A&E | A&E | East Kent Hospitals University NHS Foundation Trust | Ashford | Pending |
| Withybush General Hospital A&E | A&E | Hywel Dda University Health Board | Haverfordwest | Live |
| Worcester Royal Hospital Ed A&E | A&E | - | Worcester | Live |
| Worcestershire Royal Hospital A&E | A&E | Worcestershire Acute Hospitals NHS Trust | Worcester | Pending |
| Worthing Hospital A&E | A&E | University Hospitals Sussex NHS Foundation Trust | Worthing | Pending |
| Wrexham Maelor Hospital A&E | A&E | Betsi Cadwaladr University Health Board | Wrexham | Live |
| Wythenshawe Hospital A&E | A&E | Manchester University NHS Foundation Trust | Manchester | Pending |
| Yeovil District Hospital A&E | A&E | Somerset NHS Foundation Trust | Yeovil | Pending |
| Ysbyty Gwynedd A&E | A&E | Betsi Cadwaladr University Health Board | Bangor | Live |